SHARP LQ121S1LG88 Specification

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Page 1

Page 2

SPEC No.

RECORDS OF REVISION

LQ121S1LG88

DATE SUMMARY

REVI

SED

PAGE

NOTE

LD-24604A -

LD-24604B

LD-24604C

2012/6/26

2013/1/30

2013/4/16

1 15 Added Lot No display method.

2 8 Description of the pull-down resistor has

been removed.

Page 3

- Contents -

No. page

1 Application ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 1

2 Overview ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 2

3 Mechanical Specifications ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 2

4 Input Terminals ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 3

5 Absolute Maximum Ratings ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 6

6 Electrical Characteristics ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 7

7 Timing characteristics of input signals ・・・・・・・・・・・・・・・・・・・・・・ 9

8 Input Signals, Basic Display Colors and Gray Scale of Each Color ・・ 10

9 Optical Characteristics ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 11

10 Handling Precautions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 13

11 Packing form ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14

12 Reliability test items ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14

13 Others ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 15

14 Storage conditions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 16

Fig.1 OUTLINE DIMENSIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17

Fig.3 PACKING FORM ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 18

Page 4

LD-24604C- 1

1．Application

This specification applies to the color TFT-LCD module LQ121S1LG88.

This specification is the proprietary product of SHARP CORPORATION (SHARP) and include

materials protected under copyright of SHARP. Do not reproduce or cause any third party to reproduce them in

any form or by any means, electronic or mechanical, for any purpose, in whole or in part, without the express

written permission of SHARP.

The device listed in this specification was designed and manufactured for use in general electronic

equipment.

In case of using the device for applications such as control and safety equipment for transportation (controls of

aircraft, trains, automobiles, etc.), rescue and security equipment and various safety related equipment which

require higher reliability and safety, take into consideration that appropriate measures such as fail-safe

functions and redundant system design should be taken.

Do not use the device for equipment that requires an extreme level of reliability, such as aerospace applications,

telecommunication equipment (trunk lines), nuclear power control equipment and medical or other equipment

for life support.

SHARP assumes no responsibility for any damage resulting from the use of the device which does not comply

with the instructions and the precautions specified in this specification .

Contact and consult with a SHARP sales representative for any questions about this device.

Page 5

LD-24604C- 2

2．Overview

　　 This module is a color active matrix LCD module incorporating amorphous silicon TFT (Thin Film Transistor).

　　It is composed of a color TFT-LCD panel, driver ICs, control circuit, power supply circuit and a White-LED

　　Backlight unit. Graphics and texts can be displayed on a 800×RGB×600dots panel with about 262144

　　colors by using LVDS (Low Voltage Differential Signaling) and supplying +3.3V DC supply voltages for

　　TFT-LCD panel driving and supply voltage for backlight.

The maximum viewing angle is in the 6o'clock direction.

The 12o'clock direction is difficult to reverse the grayscale.

By the independent RGB gamma adjustment function, this module can display natural gray scales.

The LED driver circuit and the PWM circuit to drive the backlight are built into the module.

3．Mechanical technical literatures

Parameter

Display size

Active area

Pixel format

Aspect ratio

Pixel pitch

technical literatures

31（12.1inch）Diagonal

246（H)×184.5（V)

800（H)×600（V)

(1pixel＝R＋G＋B dot)

4：3

0.3075（H)×0.3075（V)

Unit

pixel

Pixel configuration

Display mode

Unit outline dimensions

【*1】

Mass

Surface treatment

【*1】 Excluding the protrusion of the connector cover from thickness.

Outline dimensions are shown in Fig.1.

R,G,B vertical stripe

Normally white

276.0（W)×209.0（H)×9.1(D)

750 （Max.）

Anti-glare and hard-coating 3H

Page 6

4．Input Terminals

4-1．TFT-LCD panel driving

CN1（Interface signals and +3.3V power supply）

Using connectors：FI-SEB20P　(Japan Aviation Electronics industry Co., Ltd.)

Corresponding connectors：FI-SE20M or FI-S20S　(Japan Aviation Electronics industry Co., Ltd.)

Using LVDS receiver：Building into cotroll IC (THC63LVDF84B(Thine electronics) or Compatible product)

Corresponding LVDS transmitter：THC63LVDM83R（Thine electronics) or Compatible product

CN1

LD-24604C- 3

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

Symbol

VCC VCC GND

GND RxIN0RxIN0+

GND RxIN1RxIN1+

GND RxIN2RxIN2+

GND CK INCK IN+

Function

+3.3V Power supply +3.3V Power supply

GND

GND LVDS receiver signal CH0 (-) LVDS receiver signal CH0 (+)

GND LVDS receiver signal CH1 (-) LVDS receiver signal CH1 (+)

GND LVDS receiver signal CH2 (-) LVDS receiver signal CH2 (+)

GND

LVDS receiver signal CK (-) LVDS receiver signal CK (+)

Remark

LVDS LVDS

LVDS

LVDS 16 17 18 19 20

【*1】　RL/UD = LOW 　RL/UD = HIGH

CN1

GND

RL/UD 【*1】Horizontal/Vertical display mode select signal

GND GND

GND

Non Conection

GND GND

CN1

Page 7

RxCKIN+ RxCKIN-

LD-24604C- 4

1 CYCLE

RxIN0+ RxIN0-

RxIN1+ RxIN1-

RxIN2+ RxIN2-

R1 R0 G0 R5 R4 R3 R2 R1 R0 G0

G2 G1 B1 B0 G5 G4 G3 G2 G1 B1

B3 B2 DE (VS) (HS) B5 B4 B3 B2 DE

DE：DATA ENABLE

HS：Hsync

VS：Vsync

NA：Non Available

4-2．Interface block diagram

(Computer　Side)

(TFT-LCD side)

Controller

R0-R5,G0

G1-G5,B0,B1

B2-B5, (HS,VS),DE

ALL GND

　TA 0 - 6

　TB 0 - 6

　TC 0 - 6

TD 0 - 6

CＬK IN

THC63LVDM83R

TTL PARALLEL-TO-LVDS

PLL

RXIN0+

RXIN0-

RXIN1+

RXIN1-

RXIN2+

RXIN2-

RXCKIN+

RXＣKIN-

Single LVDS interface contained in a control IC

LVDS-TO-PARALLEL TTL

PLL

　RA 0 - 6

　RB 0 - 6

　RC 0 - 6

CK OUT

Internal circuits

Page 8

4-3．LED backlight

　　LED backlight connector

LD-24604C- 5

CN2

Corresponding connector ： SHLP-06V-S-B ( )

Connector No. Pin No. symbol function

CN2

Used connector ： SM06B-SHLS-TF ( ) or equivalent

1 VDD

2 VDD

5 XSTABY

6 VBR

GND

+12V power supply

Backlight ON/OFF signal

J.S.T. Mfg. Co. Ltd

GND

PWM signal

Page 9

5．Absolute Maximum Ratings

LD-24604C- 6

Parameter

Supply voltage

Symbol

Vcc

Condition

Ta=25℃

VCC

VDD

Ratings

-0.3　～ +4.0

-0.3 ～ +15.0

Unit Remark

【*1,2】V

【*1,2】

RxINi-/+

Ⅰ1

Ta=25℃

V-0.3～Vcc+0.3 i=0,1,2

CK IN-/+

Input voltage

Storage temperature

Operating temperature

Ⅰ2

Ⅰ4

STG

OPA

Ta=25℃

－

RL/UD

XSTABY, VBR

- -30　～ +80 ℃

-℃

-0.3～Vcc+0.3 V

-0.3～V

DD V

-15　～ +70

【*1】

【*1,3,4】

【*1】 Humidity：95%RH Max.( Ta≦40℃ ) Note static electricity.

Maximum wet-bulb temperature at 39℃ or less. (Ta>40℃) No condensation.

【*2】 The Vcc power supply capacity must use the one of 2A or more.

The V

DD power supply capacity must use the one of 3A or more.

【*3】 There is a possibility of causing deterioration in the irregularity and others of the screen and the display

fineness though the liquid crystal module doesn't arrive at destruction when using it at 65～70℃.

There is a possibility of causing the fineness deterioration by the prolonged use in the (high temperature)

humidity environment (60% or more).

【*4】 In the operating temperature item, the low temperature side is the ambient temperature regulations.

The high temperature side is the panel surface temperature regulations.

Page 10

6．Electrical Characteristics

6-1．TFT-LCD panel driving

LD-24604C- 7

＝+25℃

Parameter

Supply voltage 3.0

Symbol

Current dissipation

Input voltage width for LVDS receiver

Permissive input ripple voltage

Differential input

Threshold voltage

High

Low

V V

Input voltage

Input reak current

Terminal resistor

Condition Min.

Vｃｃ=3.3V -

【*1】 On-off conditions for supply voltage

0.9 V

0.1 V

Data

Back light

OFF OFF

Typ.

3.3

300 400

－ 2.4 －－ 200 －－

-100

2.1 －－

-10 －

0.9 V

0.1 V

－－－ 0.8 －－

100 －

100μs＜t1≦ 10ms

500ms ≦ t

200ms ≦ t

Max.

3.6

+100

－

400 +10

0＜t

1s ≦ t

Unit

P-P

mV mV

V μA μA

≦ 20ms

≦1s

Remark

【*1】【*2】

Vcc = 3.3V

=+1.2V

【*3】【*4】－

+3.3V【*4】

=0V 【*4】

Differential input

Vcc-dip conditions

・

Vth＜VCC≦V

min

td≦ 10ms

Vmin

Hsync/Vsync need not be input so that this model may drive only by the ENAB signal.

・󲻌

Even if Hsync/Vsync is input, it doesn't become a malfunction. The relation between the data input and the backlight lighting will recommend the above-mentioned input sequence.

・󲻌

When the backlight is turned on before the panel operates, there is a possibility of abnormally displaying. The liquid crystal module is not damaged.

Vth=2.5V

=3V

min

【*2】　Current dissipation

・V

Vcc-dip conditions should also follow the On-off conditions for supply voltage

＜V

RGB RGB RGB RGBRGB GS0 GS1 GS2

・・・

GS62 GS63

Typical current situation : 64-gray-bar pattern

（ Vcc=+3.3V、fck = 40MHz、Ta=25℃ ）

【*3】　V

：　LVDS common mode voltage

【*4】　RL/UD , SELLVDS

Page 11

6-2．LED backlight

Parameter

LD-24604C- 8

Ta＝+25℃

Symbol Min. Typ. Remark

Max.

Unit

Supply voltage

VDD 10.2 12.0

DD1 - 600

Current dissipation

DD2 --

Permissive input ripple voltage

High voltage V

RP_BL

IH_BL1

XSTABY

IL_BL1

Low voltage V

High voltage V

IH_BL2

VBR

Low voltage V

PWM frequency

IL_BL2

PWM 200.0 - 1k

PWM duty 100.0DPWM 10.0 -

Life time L

【*1】 On-off conditions for supply voltage

0.9 VDD

0.1 VDD

VDD

XSTABY

t7 t9

【*1】

【*2】

【*3】

【*4】

【*4,5】f

【*4,5】

【Reference】

【*6】

7≦ 200ms

8≦

--V

2.4 -V

2.1

--V

13.8

750

200.0 VDD=+12.0

VDD

0.2

VDD

0.8

P-P

(50,000)

(Module)

0.9 VDD

0.1 VDD

t10

100μs ≦ t

0ms ≦ t

0ms ≦ t9≦

200ms ≦ t10≦

PWM

VBR

Back light (LED)

t11 t12

OFF OFF

【*2】 Current dissipation

Typ. value：　V

Max. value：　V

△2 【*3】 Backlight ON/OFF signal　

DD= +12V、Duty=100% DD= +10.2V、Duty=100%

（connected by the pull-down resistor of 10kΩ)

△2 【*4】 PWM signal　（connected by the pull-down resistor of 10kΩ)

【*5】 PWM

PWM　＝　1/t14

VBR

Duty 10% : Min. Luminance (0%：LED OFF) Duty 100% : Max. Luminance Luminance changes in proportion to the duty ratio. (t

13≧500μs)

When the frequency slows, the display fineness might decrease.

10ms ≦ t11≦

0ms ≦ t12≦

t13

t14

【*6】 Luminance becomes 50% of an initial value. (Ta＝25℃, PWM=100%)

Page 12

7．Timing characteristics of input signals

7-1．Timing characteristics

LD-24604C- 9

Max. Unit

42.0 MHz

Clock

Parameter

Frequency

Symbol

1/Tc

Min.

35.0

Typ.

940 1056 1395 clock

Horizontal period

Horizontal period (High)

THd

23.5

26.4

800 800

39.9 μs

800 clock

ENAB

Vertical Frequency

Vertical period (High)

628

TVd 600

600

666 line798

16.7 - ms

600 line

【*1】 In case of using the long vertical period, the deterioration of display quality, flicker etc. may occur.

THd

　　　ENAB

　　　DATA 　　　(R,G,B)

800 800

Remark

【*1】

600 599 600

　　　ENAB

7-2．Input Data Signals and Display Position on the screen

RGBR

（ 1, 1 ）

（ 2, 1 ）

D(1,1) D(2,1) D(3,1) D( 800 ,1)

TVd

D(1,2) D(2,2) D(1,3)

G B

D(1, 600 ) D( 800 , 600 )

Page 13

8．Input Signals, Basic Display Colors and Gray Scale of Each Color

LD-24604C- 10

Basic ColorGray Scale of RedGray Scale of GreenGray Scale of Blue

Colors &

Gray scale

Black

Blue

Green

Cyan

Red

Magenta

Yellow

White

Black

↑

Darker

↑

↓

Brighter

GrayScale

－

GS0

GS1

GS2

↓

GS61

Data signal

R0 R1 R2 R3 R4 R5 G0 G1 G2 G3 G4 G5 B0 B1 B2 B3 B4 B5

000000000000000000

000000000000111111

000000111111000000

000000111111111111

111111000000000000

111111000000111111

111111111111000000

111111111111111111

000000000000000000

100000000000000000

010000000000000000

↓↓

↓

↓↓↓

101111000000000000

↓

Red

Black

↑

Darker

↑

↓

Brighter

↓

Green

Black

↑

Darker

↑

↓

Brighter

GS62

GS63

GS0

GS1

GS2

↓

GS61

GS62

GS63

GS0

GS1

GS2

↓

GS61

011111000000000000

111111000000000000

000000000000000000

000000100000000000

000000010000000000

↓↓

↓

↓↓

↓

000000101111000000

000000011111000000

000000111111000000

000000000000000000

000000000000100000

000000000000010000

↓↓

↓

↓↓↓

000000000000101111

↓

Blue

GS62

GS63

000000000000011111

000000000000111111

Each basic color can be displayed in 64 gray scales from 6 bit data signals. According to the combination of

total 18 bit data signals, the 262,144-color display can be achieved on the screen.

Page 14

9．Optical Characteristics

LD-24604C-

Ta=+25℃, Vcc=＋3.3V

Parameter

Viewing

Horizontal θ21,θ22

angle

range

Vertical

Contrast ratio

Response Time

White Black

Chromaticity of

White

Chromaticity of

Red

Chromaticity of

Green

Chromaticity of

Blue

Luminance of white

Symbol Min.

Condition Unit

70 80

θ11

θ12

CR>10

optimized

500

τr +τd

0.250

0.265

θ=0°

350

Typ.

800

0.300

0.315

-Rx

0.570

0.330

0.600

- 0.100

450

Max.

0.350

0.365

-0.150

Deg.

cd/m

Remark

【*1,2,4】

【*2,4】

【*3,4】

【*4】

White Uniformity

δw

75 -

【*5】

※The measurement shall be executed 30 minutes after lighting at rating.

　The optical characteristics shall be measured in a dark room or equivalent state with the method shown

in Fig.2 below.

Photodetector ：Response time（BM-5A）：Contrast/Luminance/Chromaticity（SR-3）

Photodetector：(EZ-CONTRAST）

Panel center(θ=0°）

TFT-LCD module

fig.2-1 Measuring method of Viewing angle range.

Field=1°

400mm

fig.2-2 Measuring method of contrast, luminance, response time, and Chromaticity.

Panel center(θ=0°)

TFT-LCD module

Fig.2　Optical characteristics measurement method

Page 15

LD-24604C- 12

【*1】Definitions of viewing angle range:

θ22

Normal line

θ11

θ21

θ12

6 O'clock

【*2】Definition of contrast ratio:

Luminance with all pixels white

Contrast （CR）＝The contrast ratio is defined as the following.

Luminance with all pixels black

【*3】Definition of response time:

The response time is defined as the following figure and shall be measured by switching the input signal for "black" and "white".

Time

White

100%

90%

(Relative Value)

Photodetector Output

10%

Black

【*4】This shall be measured at center of the screen. 200 400 600 pixel 【*5】Definition of white uniformity:

White uniformity is defined as the following with five measurements. (①～⑤) 150

Maximum luminance of 5 points(①～⑤).

Minimum luminance of 5 points(①～⑤).

×100%

300 450

pixel

Page 16

LD-24604C- 13

10． Handling Precautions

a ) Be sure to turn off the power supply when inserting or disconnecting the cable.

b ) Since the front polarizer is easily damaged, pay attention not to scratch it.

c ) Wipe off water drop immediately. Long contact with water may cause discoloration or spots.

d ) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.

e ) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.

Handle with care.

f ) Since CMOS LSI is used in this module, take care of static electricity and injure the human earth

when handling. Observe all other precautionary requirements in handling components.

g ) Since there is a circuit board in the module back, stress is not added at the time of a design assembly.

Please make it like. If stress is added, there is a possibility that circuit parts may be damaged.

h ) It causes an irregular display and the defective indication, etc., when always put constant pressure

on the back of the module.

Please do not make the structure to press the back of the module.

i ) Do not expose the LCD panel to direct sunlight. Lightproof shade etc. should be attached

when LCD panel is used under such environment.

j ) Connect GND to stabilize against EMI and external noise.

k ) When handling LCD modules and assembling them into cabinets, please avoid that long-terms storage

in the environment of oxidization or deoxidization gas and the use of such materials as reagent, solvent,

adhesive, resin, etc. which generate these gasses, may cause corrosion and discoloration of the modules.

Do not use the LCD module under such environment.

l ) Liquid crystal contained in the panel may leak if the LCD is broken. Rinse it as soon as possible

if it gets inside your eye or mouth by mistake.

m ) Be careful when using it for long time with fixed pattern display as it may cause accidential image.

n ) Adjusting volume have been set optimally before shipment, so do not change any adjusted value.

If adjusted value is changed, the specification may not be satisfied.

o ) If a minute particle enters in the module and adheres to an optical material, it may cause display

non-uniformity issue, etc. Therefore, fine-pitch filters have to be installed to cooling and inhalation

hole if you intend to install a fan.

p) The polarizer surface on the panel is treated with Anti-Glare for low reflection. In case of attaching

protective board over the LCD, be careful about the optical interface fringe etc. which degrades display

quality.

q ) Notice : Never take to pieces the module , because it will cause failure.

Please do not peel off the Black tape pasted to the product.

An abnormal display by changing in quality of the polarizing plate might occur regardless of contact

or no contact to the polarizing plate, because of epoxy resin (amine system curing agent)

that comes out from the material and the packaging material used for the set side, the silicon adhesive

(dealcoholization system and oxime system), and the tray blowing agents (azo-compound), etc.

Please confirm adaptability with your employed material.

Page 17

11．Packing form

a) Piling number of cartons　： MAX．4

b) Package quantity in one carton： 30pcs

c) Carton size(TYP)： 520mm(W) × 370mm(D)×315mm(H)

LD-24604C- 14

Total mass of one carton filled with full modules(30pcs)： MAX　26kg

12．Reliability test items

No.

Test item

High temperature

storage test

Low temperature

strage test

High temperature

& high humidity

operation test

High temperature

operation test

Low temperature

operation test Vibration test

(non-operating)

Shock test

(non-operating)

Thermal shock

　Ambient temperature 80℃ 240H

　Ambient temperature -30℃ 240H

　Ambient temperature 40℃、Humidity 95％ RH 240H （No condensation.）

　Panel surface 70℃ 240H

　Ambient temperature -15℃ 240H

　＜Sin wave＞　　Frequency ：10～57Hz／Vibration width (one side) ：0.076mm 　　　　：57～500Hz／Gravity：9.8m/s2 　　Sweep time：11minutes 　Test period ：3H（X，Y，Z direction 1H）

Max. gravity：490m/s2 Pulse width：11ms 　Direction：±X,±Y,±Z Test period ：1time／1direction

　-30℃[0.5h]～80℃[0.5h]／50cycles

test

Conditions

Remark

【Note1】

【Note1】 Under the display quality test conditions with normal operation state, these shall be no change

which may affect practical display function. (normal operation state：Temperature:15～35℃,

Humidity:45～75％, Atmospheric pressure:86～106kpa)

Page 18

13．Others

13-１．Lot No Label:

Ａ）Module serial label

The label that displays SHARP･Model No.（ LQ121S1LG88）･Lot No. is stuck on the back of the module.

LD-24604C- 15

△1

SHARP logo

Model No.

Lot No.

Lot No display method（Figure and alphabet）　：Lotno.iscomposedof20characters.

Productionyear

Production　month

Production day

Serialnumber

13-2．Packing box Label:

The label that displays ①Model number（ LQ121S1LG88） ②Lot number ③Quantity of module is stuck

on the packing box. Moreover, the display of bar code also applies to this.

社内品番：

Lot No. ：　（1T） 2012. 06. 26 ＊＊

Quantity ：　（Q） 30 pcs

ユーザー品番　：

シャープ物流用ラベルです。

(4S) LQ121S1LG88

Barcode（①）

Barcode（②）

Barcode（③）

A right picture is written to the packing box of module for the RoHS restriction.

R.C.（RoHs Compliance）means these parts have corresponded with the RoHs directive.

　※ 　This module corresponds from the first sample to RoHS Directive.　　

① Model number（ LQ121S1LG88） ② Lot number (DATA)

③ Quantity of module

Our management product number might be filled （Example： LQ121S1LG88A etc.）

R.C.

The figure below is written under the SHARP logo of the packing box about the production country.

13-3．

The ozone-depleting substances is not used.

13-4． If any problem occurs in relation to the description of this specification , it shall be resolved

through discussion with spirit of cooperation.

Page 19

14．Storage conditions

】

Environmental condition range of storage temperature and humidity

Temperature　　　　　0 to 40 degrees Celsius Relative humidity 95% and below

【Note

Winter time temperature 5 to 15 degrees Celsius humidity , 85% and below

Direct sun light

　　　Atmospheric condition

Prevention of dew

Storage period 　　 Within above mentioned conditions, maximum storage period should be one year.

Please refer below as a mean value of the environmental conditions. Summer time temperature 20 to 35 degrees Celsius humidity , 85% and below

Please maintain within 240 hours of accumulated length of storage time, with conditions of 40 degrees Celsius and room humidity of 95%.

Please keep the product in a dark room or cover the product to protect from direct sun light.

Please refrain from keeping the product with possible corrosive gas or volatile flux.

Please store the product carton either on a wooden pallet or a stand / rack to prevent dew. Do not place directly on the floor. In addition, to obtain moderate ventilation in between the pallet’s top and bottom surfaces, pile the cartons up in a single direction and in order. Please place the product cartons away from the storage wall.

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LD-24604C- 17

Fig. 1　：　LQ121S1LG88　ＯＵＴＬＩＮＥ　ＤＩＭＥＮＳＩＯＮＳ

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Fig.3　:　PACKING FORM